An Example in Steel  Casting  --  Lever Arm in the BMW Engine Valve Train

Plasma Nitriding

Component in Plasma Nitriding Chamber 
(from Rubig Plant Technology)
Microstructure of Nitrided Surface Layer (to the right)

The wear resistance and durability of the lever arm are enhanced by a plasma nitridation which develops a hard surface layer on the entire component. 


  • Plasma nitriding (also known as ion nitriding) is a low temperature, low distortion surface engineering process.  

  • A  D.C discharge plasma is used to transfer nitrogen to the surface of the components at temperatures between 400°C and 750°C at low gas pressures.

  • The nitriding process produces a nitride rich surface layer with high surface hardness and hardened depths up to 0.8mm with minimal high temperature distortion of the component.

 

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Last Modified:October, 2003 by STG

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